Multiple flywheel and centrifugal clutching mechanism therefor



SWL, M, was. l 1,683,954

J. O. CARREY MULTIPLE FLY WHEEL AND CENTRIFUGAL CLUTCHING MECHANISM 'IHEREFOR Filed Oct. 50, 1924 4 Sheets-Sheet l MULTIPLE FLY WHEEL AND CENTRIFUGAL CLUTCHING MECHANISM THEREFOR Filed oct. 5o, i924 4 sheets-sheet 2 Zzyefaor c/afa ddd/rey y Wwf Ma@ Sep M., 392@ 1,683,954

J. o. CARRE;7

MULTIPLE FLY WHEEL AND CENTRIFUGAL CLUTCHING MECHANISM THEREFOR Filed OC.. 50, 1924 4 Sheets-Sheet 5 41; d ja 'lwemzaf v v l1 I 7?! a 76 Sept M, NZM, 1,683,954

J. o. (LARREY7 MULTIPLE FLY WHEEL AND CENTRIFUGAL CLUTCHING MECHANISM THEREFOR Filed OCL. 30, 1924 4 SheeiS-Sheet 4 J7 Ey shaft and adapted to enter into or be released Patented Sept. l1, 1928.

UNITED STATESv PATENT OFFICE.

JOHN O. CARREY, OF ST. LOUISy MISSOURI, yASSIGNOR TO CARREY-MORSE ENGINEER- INC-r COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

MULTIPLE FLYWHEEL ANI) CENTRIFUGAL CLUTCHIN G MECHANISM THEREFOR.

Application filed October 30, 1924. 4Serial No. '146,776.-

This invention relates to multiple Hy wheels and centrifugal clutch mechanism for controlling the saine whereby one Hy wheel member-is fixed to a driving means and the other Hy wheel member is carried by a driven from cooperating engagement with the Hrst Hy wheel member at predetermined speeds. The object of the invention is to provide means for starting intermittent loads, such as pumps, air compressors, punch presses, etc., wherein the load is started against high pressure.l Further objects of the invention are to provide simple and etcient means for controlling the cooperating engagement between said Hy wheel members.

, Still further objects of the inventionare to provide a Hy wheel comprising a pluralityl of members which are adapted to be set in operation progressively at predetermined speeds, thereby graduali increasing the weightand momentum o the Hy wheelin correlation with the speed and thus eliminating heavy strain on the driving means during the starting opera-tion.

Other objects of the invention are to provide simple and efficient clutching means operable by centrifugal force for controlling the driving connections between the Hy wheel members.

With these and other objects in view, my invention consists in certain novel features of construction and arrangement of parts, hereinafter more fully described and claimed, and illustrated in the accompanying drawings, in which- Figure 1 is a vertical longitudinal section taken through the Hy wheel and showing the Hy wheel members in cooperative or interengaged-position.

Figure 2 is a transverse cross section taken on line 2-2 of Figure 1 and showing the clutching means in operative position.

Figure 3 is a ragmental view of the driving Hy wheel member showing the clutching means in inoperative or disengaged position.

Figure 4 is a fragmental cross section l through the Hy wheel showing the clutching lull means in inoperative or disengaged position.

Figure 5 is a perspective detail View of one of the blocks constituting the centrifugally operable members of the clutch.

crosssectiom the friction band and sections of the pivotal arms carried by the driving Hy wheel member'.

Figure 11 is a fragmental section of the Hy wheel members and showing the pivotal arm actuated by centrifugal force for bringing the friction band into engagement with the driven Hy wheel member.

.Figure 12 is a top plan view of one of the pivotal arms. Y

lFigure 13 isa fragmental sectional viewof another modified Aform of the multiple Hy wheel.

Figure14 is a top plan view of the'weighted arm shown in Figure 13 and its connections with the driving Hy wheel member.

Figure 15 is an end elevational view of a driving Hy wheel member and showing in cross section the frictional means used for effecting int-erengagement between the driven and driving Hy wheel members.

Figure 16 -is a vertical section taken on line 16--16y of yliigure l5. y

Figure 17 is a top plan view of a portion oi a reinforcing member utilized in connection with the friction means shown in Figures 15 and 16.

Figure 18 is a longitudinal cross section taken through the modified form of my multiple Hy wheel and showing means for prothe driving and driven Hy wheel members.

Figure 19 is an end elevational view of thel driven Hy wheel member partly broken away to ,more clearly illustrate my invention.

In the present invention, the Hy wheel comprises two members, a driving member and a driven member, which are approximately of the same diameter. The driving wheel member is secured to the driving means, such as a shaft, and the driven Hy wheel member` is secured to the driven shaft and said wheel members are adapted to be operatively interengaged by means of a centrifugally actuated clutch.

It will be understood that the driving fly wheel member after it is' set in motion has the power plus the momentum that is ,stored up in said driving member. After said member has attained a predetermined speed, the centrifugal clutch is operated to interengage the driving and driven fly wheel members, thereby setting said driven fly wheel member in action. Thus the fly wheel as a whole is gradually brought in operation and relieves the motor of `an excessive load during the starting operation.

Referring by numerals to the accompanying drawings, indicates the driving shaft to which is fixed a driving fly wheel member 11. A driven shaft 12 is coaxially arranged with shaft 10 and has fixed thereto a driven fly wheel member 14. The inwardly disposed portion 14a of member 14 is provided with an enlarged bore 15 in which is disposed a tubular section 16 formed of suitable cushioning material, such as a friction band, and the end of shaft 10 projects beyond the hub of the driving member 11 into the seatformed by said cushioning material 16. Thus said hub portion 14a forms a bearing for the extreme end of theJ driving shaft andthe friction member 16 serves as a seat for said shaft and cushions vibrations produced by said rapidly revolving shaft.

Driven fly wheel member 14 is provided with a rim 17 to the inwardly disposed face of which is secured a concentrically disposed section of flexible friction material 18, preferably formed of a section of material commonly used for brake bands for vehicles. The width yof this frictional member 18 is greater than the width of the inner face of rim 17 and a portion of said member 18 projects outwardly from driven fiy wheel member 14 and is disposed adjacent to the inner face of the rim 19 of the driving fiy wheel member 11. A series of segmental weighted blocks 20 is concentrically disposed in the space formed by rim 19 of member 11 inwardly of friction member 18 and the outer face of each block 2O is curved to conform to the curvature of member 18 and is adapted'when member 11 is actuated to move under centrifugal force outwardly against member 18 and force the latter into engagement with thel rim 19 of member 11, thereby establishing driving connection between the driving member 11 and the driven member 14. Blocks 20 are loosely arrangedv within wheel 11 and to 'prevent their displacement therefrom said blocks are provided with an outer and an inner groove 20a and 20", respectively, for receiving spring rings 21 and 22. These rings are formed yielding andare split, as indicated in Figure 2 at 21a and 22 respectively, so as to permit the expansion of said rings when the blocks 20 are movedV outwardly by centrifugal action. When thev speed of the driving fly wheel member 11 falls below a predetermined degree, said split rings contract and cause blocks 20 tomove inwardly out of engagement with the friction member 18. The ends of said split rings preferably have overlapping relation in order to permit the expansion and contraction of said split rings without the danger of disengagement thereof or the displacement of blocks 20. The inwardly disposed grooves 2()b are preferably provided with rings or cross pieces 20c which are seated in the inner faces of blocks 2O and prevent the displacement of the inner ring 22.

In the operation of the device, assuming that the driving member 11 is at a stand still, segment-al blocks 2O occupy the position shown in Figure 3, wherein the outer faces of said blocks are spaced inwardly from friction member 18, the lowermost block or blocks ment-of blocks 2O is very slight and does not interfere with the proper functioning of the .device as the pressure exerted against member 18 by said blocks is not sufficient to eect interengagement between the fly wheel members. When member 11 is actuated and after obtaining proper speed, blocks 20 move outwardly under centrifugal action, overcoming the resiliency of rings 21 and 22 and force friction member 18 into operating contact with the inner face of rim 19 of member 11. Member 18 being fixed to the rim of driven fly wheel 14,'the latter will thereby be driven in unison with the driving fly wheel member 11.

Member 18 is preferably fixed in position on rim 17 by means of a ring 24 which is driven in position and clamps member 18 against the inner face of rim 17. Ring 24 lul,

and member 18 may be further secured in position by a pin or screw 25 driven into the rim 17 If desired, the inner face of rim 17 may be undercut as indicated at 17u in order to securely seat member 18 in the driven fly wheel member 14.

The form disclosed in Figures 1 to 5 is designed to be used for clutching in. or establishing driving connection between two or more sections of the fly wheel when the driving member reaches a predetermined speed.

The lform shown in Figures 6 to 8 discloses a resilient split ring 33 carried by the driving member and normall occupying contracted position away from t e friction'member and adapted yto expand and force the friction member into driving engagement with the driving member. This ring carries weights A and B nea-r its ends and is transversely grooved at a point diametrically opposite to its endsas at X, to permit the outward moveof centrifugally operated weights A and B. A pair of comparatively small Wei hts C is arranged equidistant on each side o point X for oounterbalancing the large weights Al and B. Y-

lln the form shown in Figure 9 a friction f member 272L is loosely arranged against the inner faces of the rims of a driven member 29a and driving member 261 and blocksfla and 31b are disposed in*VVV the respective members and are designed' to grip the friction member against said rims and establish driving connection therebetween.

in Figures 10 tov 12 is shown. a modified form wherein a driving member '34 is provided with a series of weighted arms .35 piv otally connected to said driving member and having their weighted ends adapted to bear against a friction member 37 and press the latter into driving engagement with a driven Hy wheel member 38.

1n the form shown in Figures 13 and 14,

. the driving member 39 is provided with inwardly disposed lugs 391 in which are slidably mounted the ends of arms 40 which are adapted to bear against the friction member 41 carried by t-he driving member and force it into driving engagement with the driven member 42.

1n the form shown in Figures 15 to 17, a pair of friction members 44 is provided for establishing driving connection between a driven Hy wheel member 45 and the driving Hy wheel member 46. Interposed between said friction members 44 is a reinforcing member 47, preferably formed of metal and -this member is provided with spaced notches 48,. as shown in Fi ure 17, which increases the mem er. Y 1 v In most of the forms previously described,

. the friction member is rigidly carried by one of the Hy wheel'members and in such form'it is necessary that the axes of said members be in alignment in order to insure efficient operation of the device. l

In Figures 18 and 19 amodied form of the device is shown, wherein the friction member 49 is Hxed by means of a ring50 to the Hat face of an inner ring 51, the `outer face of which is curved in transverse cross section and engages the inner Hat face 0fan outer lring .52 which is similarly formed having its outer convex face bearing against the inner face of a rim 53 of a driven Hy wheel member 54,- Friction member 49 is adapted: to be" brought into driving engagementfwith the rim 55 of a driving member 56 by means of weights 57 carried by said driving member 56. Outer ring 52 is pivotally secured to the rim 53 by means of diametrically opposed pins or screws 57a seated in lsaid ring and having their inner ends engaging recesses or seats 58 formed in the outer face of ring 52. The inner ring 51 has a pivotal driving ielding qualities of said reinforcing engagement with the outer ring 52 by means Y of diametrically opposed pins or screws 59 seated in ring 52 vand having their ends entering into recesses or seats 60 formed in the conveX face of ring 51. Members 59 are arranged.

at right angles to members 57 a whereby-friction member 49 carried by said rims can be tilted in any direction in order to accommodate itself to the inner face of the rim o f memv ber 56 and therefore it is not necessary that the shafts of the Hy wheel members be in per- `l feet coaxial' alignment. I

I claim: l

1. A Hy wheel comprising in combination a Hy wheel driving member provided with an inwardly presented concentrically disposed by said driving fly whee member and adapted to bear against said friction band and force it into operative engagement with the face of said drivingmember. i 2. In a device of the class described, the combination with a driving Hy wheel member and a driven Hy wheel member, of a friction band carried by said driven member and adapted to engage said driving member, and centrifugally adapted to .engage said riction b and and force it into operative engagement with said Hy wheel driving member.

3. A clutch comprising a driving member, a .driven member, a friction band carried by said driven member and disposed in cooperative relation with said driving member, and a lurality of segmental blocks carried by said riving member and adapted to be moved by centrifugal action into engagement with Vsaid frictionband and force it into o erative" operable segmental members engagement withsaid driving mem er.

rality of segmental blocks carried by said driving member and adapted to be moved by centrifugal action into engagement with said friction band and force it into operative engagement with said driving member, and cirf cular sprmg members mterengaging said i blocks for Iyieldingly maintaining said blocks in a predetermined relation with the driven"v member in accordance with the speed of said driving member.

5. In a device of the of independently rotatable members each of which is provided with an annular inwardly presented face, said faces being arranged. contiguous to each other, a Hexible band secured to one of said faces and in cooperative relation with the face of the other member, and weighted members carried by the last class described, a pair" mentioned rotatable member and movable outwardly by centrifugal action against said flexible band for forcing the latter into driving engagement with the last mentioned rotatable member.

6, In a device of the class described, a pair of independently rotatable members arranged in coaxial juxtaposed relation With each other, each of said members being provided with an annular inwardly disposed face, a flexible ban-d carried by the face of one of said members and adapted to frictionally engage the face of the other one of said members a split resilient ring, and weights carried by saidring and operableby centrifugal action for controlling the frictional interengagement between said exible band and the corresponding rotatable member.

7. In a device of the class described, a pair of independently rotatable members provided with inwardly disposed annular faces, a ring having circumferential pivotal engagement with the rim of one of said members, a flexible band carried by said ring and adapted to frictionally engage the annular face of the other one of said members, and weights carried by the last-mentioned rotatable member and Aoperable by centrifugal force for forcing said flexible band into driving engagenent with the last-mentioned rotatable memof rotatable members, a series of rings arranged within the rim of one of said members and having Aperipheral pivotal engagement with each other and with said rim, a fiexible band carried by the innermost one of said rings and adapted to operatively engage the face of the other one of said rotatable members, and weights carried by the last mentioned rotatable member and operable by centrifugal force Vfor forcing said flexible band into driving engagement with said last-mentioned rotatable member.

9. In a `device of the class described, a pair of vindependently rotatable members, a flexible mounting carried by one of said members, a frictional band carried by said flexible mounting and having cooperative relation with the other one of said rotatable members, and weights carried by the-last-mentioned rotatable member and operable by centrifugal force for forcing said frictional band into ,driving engagement with the last-mentioned rotatable member.

In testimony whereof I hereunto aflix my" day of October, 1924.

signature this 11th JOI-IN O. CARREY.

8. In a Idevice of the class described, a pair 

